Powder-insufflator.



Patented Oct. 3, I900.

W. F. BARRY. POWDER INSUFFUKTCIR.

:AppEicatioa filed July 12.11900.)

(No Medal.)

W m. m W m T Y Y hiiilia) rate iPATENT Urrtclet \VILLTAM F. BARRY, OF\VOONSOCKFIT, RllODFI ISLAND, ASSIGNOR OF ONE- IIALF T0 \VILLIAM ll. LNCOLN, ()l" SAME PLACE.

POWDER-iNSUFl-LATOR.

'' SPECIFLCATION forming partcf Letters Patent No. 660,042, datedOctober 16, 1900.

Application filed July 12, 1900. Serial No. 23,402. (No model.)

To 1/ u'hmn muy concernlie it. known that I, WILLIAM F. BARRY, a citiz nof the United States, rcsidiugat 'oonsocket, in the county of Providenceand State of Rhode Island, have invented newan'l use fnl Improvements inPowder-lnsulllators, of which the following is a specification.

hly in vention' relates to improvements in that class of powderinsntllators on injectors to which comprise a receptacle or reservoirfor powder, an elastic bulb connected with one end of said ret-eptacleorreservoir, and anozzle connected with the other end thereof.

it, consists in a certain peculiarconstruction the novelty andadvantages of which will be fully understood from the followingdescription and cl'aitns when taken in conjunction withtheaccompanyingdrawings, in \vllltzh- Figure 1 is a plan view of aninjector construt-ted in accordance with my invention. Fig, 2 is alongitudinal central section of the same. Fig. 3 is a trzmsverse sectiontaken in the plane indicated by the broken line 3 3 of Fig. 1 andillustrating the rotatable band in the position it is caused to assumein order to close the powder chamber or reservoir.

in the said drawings similar let-tors designate corresponding parts inall of the views, referring, to which- A is the body, ll the elasticbulb, and C the nozzle, of my improved device.

The body A is preferably made in one piece of brass or other suitablemetal, and comprisesan int-ertnediatediametrically-enlarged portion a,in which is formed a chamber or reservoir 1), and tubular port-ions c d,which communicate with and extend in opposite di rections from saidchamber or reservoir, as shown. The intermediate portion a is exteriorlyof circular form in cross-section and is provided at an intermediatepoint of its length with a lilting-aperture e and at its ends withflanges c. The tubular portion 0 is interior-ly threaded at its outerend to receive a threaded nipplef on the bulb I while the outer end ofthe tubular portion (l is slightly enlarged, as indicated by g, toreceive one end of a rubber tube 1). Such end of the rubber tube issecured by cement in the enlargement g, while its opposite end is inter'snugly fits the same.

7 same.

posed between and secured by cement. tonne end of the nozzle C and ametallic annulus h thereon.

The nozzle 0 is preferably made of glass to adapt it; to bereadilycleansed and is shaped as shown and flexibly connected to thebody through the medium of the rnbbertube, so as to permit. of its beingreadily inserted in the nasal passages and other passages and cavitiesof the body.

E is a rotatable band which is mounted on the intermediate enlargedportion a of the body, between the flanges 8' thereof, and This band isprovided with an aperture i, adapted to register with the aperture e ofthe body portion a, and is also provided with the milled or roughenedend portionsj to permit of its being readily rotated.

It will be readily appreciated from the foregoing that when the band Eis rotated until its aperture] is coincident, with the aperture e of thebody access is all'orded to the chamber or reservoir 1), and saidchamber or reservoir may be conveniently filled with powder, while whensaid band isrot ated to carry its aperture away from the aperture e thesaid aperture 6 is tightly closed and the escape of powder throughthe'saute precluded. It, will also be appreciated that the band E may bequickly and easily turned to open or close the chamber or reservoir 1),and yetis not liable to be casually turned incident to the use of theinjector.-

My improved injector is used in the usual mannert,h ab is to say, thenozzle 0 is insorted in the nasal or other passage or cavity to betreated and the bulb 15 is compressed one or more times to force thepowder intogo such passage or cavity.

I have entered into a specific description of the construction andrelative arrangementtof the parts embodied in this the preferredembodiment. of my invention in order to impart;

a full, clear, and exact understanding of the I do not. desire, however,to be understood as confining myself to such specific construction andarrangement of parts, as such changes or modifications may be made inpractice as fairly fall within the scope of my claim.

IOO

ture in the wall of the chamber or reservoir, and also having theroughened end portions, the elastic hull) connected to one 1 ubnlztrportion of the body, the nozzle, and the rubber tube interposed betweenand connected to the other tubuln r portion of the body and the nozzle,substantially as specified.

In testimony whereof I have hereunto setmy hand in presence of twosubscribing wit,- nesses.

W'ILLIAM F. B.-\RRY.

Witnesses:

Geo. W. SPAULDING, \VILLIAM I. LINCOLN.

